Floor scrubbing and mopping machine



April 10, 1934. L. HEITMAN 1,954,314

FLOOR SCRUBBING AND MOPPING MACHINE Original Filed Nov. l2, 1950 2 Sheets-Shree?I l April l0, 1934. l HEITMAN 1,954,314

FLOOR SCRUBBING AND MOPPING MACHINE Original Filed Nov. l2. 1930 2 Sheets-Sheet 2 -'1' r Tf 5 1%4 5 wvwwboz e011 Hei/111611Z ACT Patented Apr, 10, 1934 UNITED STATES PATENT OFFICE FLOOR SCRUBBING AND MOIPING MACHINE Leon Heitman, New York, N. Y.

1 Claim.'

rllhis invention relates to improvements in iioor cleaning machines, and it is the principal object ci my invention to provide such a motor-operated machine equipped with means for scrubbing, wiping and drying, polishing or waxing a floor.

Another object of my invention is the provision of a machine of this character equipped with a water tank allowing a heating of the water therein and a distributing of the water by means of a three way valve to the various places of its use.

Still another object of my invention is the provision of a door cleaning machine of this type the endless felt band of which is guided between squeezing rollers squeezing the water and dirt carried along out of the same while allowing a drying of the belt by means of the heating device heating the water within the supply tank.

A further object of my inventionisthe provision of a door cleaning machine in which means are `provided to carry the water and dirt from the endless felt band away.

A still further object of my invention is the provision of a machine for cleaning floors, in which a pump distributes the water from the tank to a A cleaning brush on a hollo-w perforated shaft which can easily be exchanged from the floor waxing implement and for this purpose can be swung about the hinge oi the iront part of the cover to rest upon the same in a suitable depression.

These and other objects and advantages of my invention will become more fully known as the description thereof proceeds and will then be specifically defined in the appended claims.

l'n the accompanying drawings forming a ma-u iterial part of this disclosure:

Fig. 1 is a top plan View of a floor cleaning machine constructed according to my invention.

Fig. 2 is a sectional side elevation thereof.

3 is a sectional front end elevation of the cleaning brush and parts co-operating therewith, the section being taken on line 3-3 of Figure 4.

Fig. 4 is a fragmentary sectional end elevation of the brush and its hood.

Fig. 5 is a side-elevation of the machine, closed.

Fig. 6 is a fragmentary sectional side elevation of a dirt remover.

Fig. 7 is a sectional elevation of a valve.

As illustrated, a housing 10 on wheels 11 carries on its top 12 a motor 13. To the substantially .vertically arranged shaft 14 of the motor, a ilexible shaft 15 is attached at one of its ends, the other end of which is attached to an inclined, longitudinally extending shaft 16, journaled in suitable bearings 17, 17', the end of the shaft extending beyond bearing 17' is coupled by means of openings 24.

A brush is arranged upon shaft 23 to rotate therewith and to be supplied with water through the openings 24 from the longitudinal hollow core of the shaft to which it is supplied through the nipple 26 connected by a flexible connection 27 with a three-way valve 28 controlling the supply of water from a tank 29 within housing 10.

On shaft 16 a worm 30 is provided in mesh with a worm wheel 3l on a shaft 32, which carries also a. sprocket wheel 33 over which a chain 34 is guided which is also guided over a sprocket wheel 35 on a shaft 36, which carries also a feed wheel 37 for an endless belt 38 of felt or other moisture absorbing and dispensing material which is also guided over rollers 39 and 40.

squeezing rolls 41-42, respectively upper and lower, coi-operate with the intermediate roll of larger diameter to squeeze the mop 38 as it passes therebetween, the water and residue matter falling upon the surface of a removable lfter 42 acting to retain all particles, the water passing through the nlter entering a basin having its lower wail inclined downwardly to the center, from which it enters a pipe 44 leading to the tank 29.

There the nltered water squeezed from the mop commingles with the contents of the tank and upon removal of the filter, through the side of the housing 10, the collection of dirt may be removed and the filter replaced without affecting the mechanism of the apparatus.

The shaft 16 carries also a worm 45, in mesh with a worm wheel 46 on shaft 47 carrying a wheel 48 to the side face of which is eccentrically arranged the jointed rod 49 of a pump 50 pump- 95 ing the water from `tank 29 through conduit 51 into conduit 52 leading to valve 28 and from there through pipe 53 to the ilexible connection 27 and through pipe 54 from a water supply into tank 29.

The water in tank 29 is heated electrically by means of the resistance 55 with a circuit 56, 56'.

The valve body 28 is operated by means of a rod 57 attached at one end to one arm of a bellcrank lever 58 to the other arm of which a hand lever 59 is attached, while a spring 60 is attached at one end to a pin 61 and at its opposite end to arm 58.

The front end 62 of cover-or top 12 of the housing 10 is hinged thereto, as at 63, and can be swung about its hinge by means of a handle 64 to snugly engage in a depression 65 of the cover or it may be swung back in its covering position by means of handle 66.

1n operation the machine is moved across the ioor, and the brush is supplied with water from the tank by the suitable operation of the Valve by means of the pump operated from the motor. The felt band will wipe clean or polish the floor behind the brush, and the squeezer rollers will squeeze the dirty water and dirt out of the belt and onto plate d2 which retains the dirt and from which the water is returned into the tank through conduit 44. It will be clear that by turning the front end of the cover back onto the top of the housing the bearings for the brush shaft can be used to carry the shaft of a oor waxing implement.

It is to be understood that I have described and shown the preferred form of my invention only and that I may make such changes in its construction as come within the scope of the appended claim without departure from the spirit of the invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

A floor cleaning machine comprising a wheeled housing carrying a motor and its shaft, an inclined, longitudinally extending shaft, flexible connections between said motor shaft and said inclined shaft, a water tank within said housing, an endless mop Within said housing, means to actuate said mop driven by the inclined shaft, a worm on said inclined shaft for operating the mop moving means, a pump and means for operating said pump from said inclined shaft, a shaft in alignment with said inclined shaft, a coupling for said aligned shafts, a rotary brush supplied with water from said tank by said pump, driving connections between said aligned shaft and said brush, means for controlling the water supplied to said brush, means for heating the water in said tank, a hinged cover over said brush, means for squeezing the Water from said mop, a horizontal filter removably engaged in said housing for collecting the dirt contained in the Water squeezed from said mop, and means for returning the water from said filter into the tank.

LEON HEITMAN. 

